17 references to IsNull
System.Private.Windows.Core (17)
System\ArgumentValidation.cs (1)
49
if (argument.
IsNull
)
Windows\Win32\Graphics\Gdi\BeginPaintScope.cs (1)
39
if (!HDC.
IsNull
)
Windows\Win32\Graphics\Gdi\CreateDcScope.cs (2)
57
public bool IsNull => HDC.
IsNull
;
61
if (!HDC.
IsNull
)
Windows\Win32\Graphics\Gdi\DeviceContextHdcScope.cs (3)
132
if (HDC.
IsNull
)
146
HDC = HDC.
IsNull
? DeviceContext.GetHdc() : HDC;
165
if (HDC.
IsNull
)
Windows\Win32\Graphics\Gdi\GetDcScope.cs (2)
57
public bool IsNull => HDC.
IsNull
;
64
if (!HDC.
IsNull
)
Windows\Win32\Graphics\Gdi\HdcHandle.cs (1)
31
if (!Handle.
IsNull
)
Windows\Win32\Graphics\Gdi\SelectObjectScope.cs (1)
47
if (!_hdc.
IsNull
)
Windows\Win32\Graphics\Gdi\SetBackgroundColorScope.cs (1)
35
if (!_hdc.
IsNull
)
Windows\Win32\Graphics\Gdi\SetBkModeScope.cs (1)
38
if (!_hdc.
IsNull
)
Windows\Win32\Graphics\Gdi\SetMapModeScope.cs (1)
39
if (!_hdc.
IsNull
)
Windows\Win32\Graphics\Gdi\SetRop2Scope.cs (1)
38
if (!_hdc.
IsNull
)
Windows\Win32\Graphics\Gdi\SetTextAlignmentScope.cs (1)
39
if (!_hdc.
IsNull
)
Windows\Win32\Graphics\Gdi\SetTextColorScope.cs (1)
39
if (!_hdc.
IsNull
)